Device for placing a paper bag bottom

ABSTRACT

The inventive device for placing a paper bag bottom ( 1 ) produces score lines on the ends of tubular segments which are used for producing bags ( 1 ), applies glue layers to the folded bottoms on the extremities of the tubular segments and/or to sheets ( 2 ) for gluing them with the bottoms with the aid of gluers ( 10, 20, 30, 40 ), connects and glues the folded bottoms ( 1 ) and the sheets ( 2 ). Contrarily to presently used devices, said device is provided with at least one gluer ( 10, 20, 30, 40 ) which comprises at least one glue reservoir ( 21 ) or at least one glue duct ( 33, 52, 53 ), the glue contained in the reservoir or in the duct being exposed to a pressure higher than ambient pressure. The glue reservoir ( 21 ) or the glue duct ( 33, 52, 53, 55, 72, 73 ) is provided with at least one output orifice ( 71 ) for applying the glue to the sheets ( 2 ) and/or to the folded bottoms ( 1 ). The inventive method for operating said device is also disclosed.

The invention concerns a device for placing a paper bag bottom inaccordance with the generic term of claim 1.

Devices of this kind are used for manufacturing different types of bags.These include cement bags that are usually manufactured as valve bags.For this purpose usually the bottom folding involves the use of valvesheets that are inserted in the bottom of the bag. However it isimportant to differentiate between pinch-, block- and cross bottoms. Inthe creation of cross bottom bags that is explained, for instance, in DE090 145 48 U1 and DE 3020043 A1, special demands were placed on thegluing.

In all devices of this kind the bag bottoms are formed with the help ofglue—usually starch glue. For this purpose—as described in the genericterm of claim 1—either the folded bottoms or the valve sheets assignedto them or both the aforementioned elements to be glued are providedwith a glue layer and subsequently merged together. Each of the bagcomponents is glued usually by bringing a format part in contact withglue rollers or other glue storage or transmission components. Theformat part is attached to a rotating roller and is often also referredto as a plate. By rotating the glue roller, the format part is suppliedwith glue. As the glue roller continues to rotate, the format platetransfers the glue stored on it to the respective bag component to beglued. For this purpose the format part is provided with characteristicpeaks (ridges) that are adapted to a definite bag format. In order tomanufacture bags with different measurements on the bottoming device theformat parts are replaced.

The described type of glue application has stood the test of time in thedevices for placing a paper bag bottom because it enables a cleanapplication of large quantities of starch glue that is otherwisedifficult to handle.

However, this method of glue transfer makes it necessary to makeavailable and later clean many mechanical glue transfer components—suchas for instance the plate roller and the format parts.

Therefore the task underlying the present invention is to make thesecomponents redundant.

The task is solved by the fact that

-   -   at least one gluer    -   that is equipped with at least one glue reservoir or at least        one glue duct in which the glue is exposed to a pressure that is        higher than the ambient pressure    -   and whereby the at least one glue reservoir (21) or the at least        one glue duct is provided with at least one glue output orifice        through which the glue is directly applied on the sheets and/or        the folded bottoms (1).

An advantageous design form of the present invention can carry out aglue transfer process on the components to be glued while at the sametime preventing a component of the bottoming device that is carrying theglue, such as the glue reservoir or the glue duct, from touching the bagcomponents. For this purpose the output orifices should be appropriatelydistanced from the parts to be glued. The glue can be properly sprayedagainst the parts to be glued. This contact-free glue application canprevent the contours of the format from being smeared and thus distortedby the contact.

However, the contours can be intentionally smeared by the components ofthe gluer. Particularly, if the glue application occurs not across theentire surface but instead for instance in the form of glue lines, theentire surface can be covered with glue by smearing the glue lines. Thissmearing is possible by a direct contact between the glue reservoir orthe glue duct and the glue lines. However, as a rule, additional rollerscontribute to a smearing or compression of the glue lines.

Another advantageous design form of the present invention featuresnumerous output orifices that are provided at a glue application head.

Further examples of implementation of the present invention emanate fromthe graphic description and claims.

The individual figures illustrate:

FIG. 1 A glue application device for bag bottom sheets in accordancewith the prior art

FIG. 2 A glue application device for cross bottoms in accordance withthe prior art

FIG. 3 View of a gluer in accordance with the present invention

FIG. 4 View of a gluer in accordance with the present invention thatproduces complex adhesive formats.

FIG. 5 a) A side-view of an example of implementation of the presentinvention with a glue duct for the glue supply of the valve

FIG. 5 b) A top-view of the example of implementation of the presentinvention illustrated in FIG. 5 a)

FIG. 5 c) Another side-view of the example of implementation of thepresent invention illustrated in FIG. 5 a)

FIG. 6 A view of an application head with several rows of valves

FIG. 7 a) A view of the side of an application head. The sideillustrated is facing the parts to be glued.

FIG. 7 b) An illustration of the glue duct from the valves to the outputorifices in the example of the implementation of the application headillustrated in FIG. 7 a).

FIG. 7 c) An enlarged section from FIG. 7 b)

FIG. 8 a) A top-view of an application head that can move in they-direction

FIG. 8 b) A top-view of an application head that can move in they-direction

FIG. 8 c) A top-view of an application head that can move in they-direction

FIG. 9 a) A sheet 2 with a U-shaped adhesive format

FIG. 9 b) A sheet 2 with an adhesive format in the shape of arectangular frame.

Furthermore, the individual figures illustrate:

FIG. 10 Another side-view of a nozzle applicator

FIG. 11 Another top-view of a nozzle applicator

FIG. 12 Another section through a format plate system in accordance withthe present invention (section A-A in FIG. 4)

FIG. 13 Another top-view of a pin plate that is mounted on a base plate.

The following figures illustrate not only glue application devices forcross bottom bags but also devices of prior art. The illustrated devicesin accordance with the invention apply glue solely on bottom sheets 2.However they can also apply glue equally well on cross bottoms 1.

FIG. 1 illustrates a glue application device as is usually used inaccordance with prior art for gluing bottom sheets 2. In this deviceglue is transferred from a glue cylinder 11 on the format part or plate12. The format part or plate 12 is carried by a plate cylinder 13 andaround the axis of the plate cylinder 13 in the direction marked by thearrow 16. In this movement of rotation the format part or plate 12transfers glue on the bottom sheets 2 that are carried by the grippercylinder 14 during the glue transfer. The bottom sheets 2 are carriedbeforehand by a transport device (not illustrated in the figure) alongthe dotted line 18 in the direction of the arrow x into the splitbetween cylinders 13 and 14. The rotation of the gripper cylinder 14 inthe direction marked by the arrow 15 carries the glued sheets further tothe bag bottoms 1. The bag bottoms 1 are transported by a transportdevice (also not illustrated in the figure) in the direction of thearrow w. The bags 19 are closed by the bag bottoms 1.

Between the gripper cylinder 14 and the transport device of the bags, apressure is built up that compresses sheets 2 and bag bottoms with eachother, thus joining them permanently.

FIG. 2 illustrates another glue application device 20 in accordance withprior art that is usually used for gluing the bag bottoms 1. For thispurpose, a plate or format part 22 that is attached to the circumferenceof the plate cylinder 23 is brought into contact with the glue transfercylinders 28 by the rotation of the plate cylinder 23 around its axis 25in the direction of the arrow 27 and thus supplied with glue. For thispurpose the format part 22, similar to the format part 12, has recesses(not illustrated in the figure). These recesses are filled with gluewhen they contact the glue transfer rollers.

The glue transfer rollers 28 border the opening of a glue reservoir 21.During their rotation the glue transfer rollers transport glue on theircircumference from glue reservoir 21 to the plate 22.

In the further course of the rotation of the cylinder 23, the formatpart or plate 22 enters into the roller clearance 24 between thecylinders 29 and 23. There the plate 22 transfers glue on a bag bottom1. The bag is transported beforehand by a conveying device along thedotted line 26 into the roller clearance.

In case the bag formats are altered, the format parts 12, 22 arereplaced by format parts that conform to the new bag format.

FIG. 3 illustrates a sketch of a sheet gluer 30 of a cross bottomingdevice in accordance with the invention. It provides individual sheets 2carried in the direction of the arrow x with glue lines 3. For thispurpose the gluer 30 is equipped with an application head 31. Thisapplication head is provided with glue with the help of the tube 33. Theglue is distributed inside the application head 31 by appropriate glueducts onto the valves 32. The valves 32 are attached to the applicationhead 31 in two rows that run transverse to the conveying direction x ofthe sheets 2. These valves 32 are at least in the position to release orcut off the glue flow. They can be controlled by external,preferentially electric, signals and they 32 withstand the gluepressure.

On the under surface (not illustrated in FIG. 3) of the application head31 are the output orifices 71 through which the glue leaves theapplication head 31 and forms the glue lines 3. The arrow x points tothe transfer direction of the sheets 2, while the arrow y points to thehorizontal direction running transverse to it.

FIG. 4 illustrates a gluer 40 that is constructed externally exactlylike the gluer 30 from FIG. 3. The various glue lines 44 to 47 show thatthe most different adhesive formats are realizable using such a device,without having to employ format parts. In this connection a variation ofthe plate breadth, i.e., the expansion of the adhesive surface in ydirection is feasible by a switch-off or switch-on of valves 42 duringthe production of bags in this adhesive format. The valves that areswitched off in this way are not active during the complete duration ofthe glue application of sheets 2, 48 or bag bottoms of one format. Inthis manner preferentially rectangular adhesive formats emerge—asillustrated in FIG. 3. These are formed out of the end-to-end glue lines3, 47 that usually have the same length.

For this purpose the valves that are active while creating an adhesiveformat must be closed after creating an end-to-end glue track 47. Thevalves should be reopened when the next still unglued sheet 48 arrivesat the output orifices. In case of customary glue application speeds,this work sequence leads to considerable demands on the switching timeof the valves 32. If further variations in the form of the adhesiveformat or adhesive quantity are carried out, the valves 42 must beopened and closed faster than the creation of end-to-end glue lines 47.

Thus an essential variation of the applied adhesive quantity is possibleparticularly by applying several noncontinuous glue lines 44. Thefurther variation of the form of the adhesive format, involving a cleardeviation from the rectangular shape, requires the application of short45 and noncontinuous glue lines 46. For example it is often necessarythat the adhesive formats 4 have a U-shape 4 a) or a rectangular frame 4b) as is illustrated in FIGS. 9 a) and b). For this purpose a differentcontrol of the valves is necessary while gluing a bag component that isto be glued 1, 2.

It is advantageous if the valves provided in the bottoming device have aswitching time and/or are switched in a time period less than 5milliseconds. Then a large part of the variations of adhesive formatsthat are required in the industry and can be carried out by changingindividual glue line lengths in the x direction, can be implemented inthe manner described above using current gluing speeds.

With the help of the various glue lines 45 to 48 it is possible to sensehow flexibly such a device in accordance with the present invention cangenerate formats if the valves are switched even faster.

The design forms illustrated in the FIGS. 3 and 4 are as suitable forthe actually illustrated gluing of individual sheets 2 as they are forgluing paper webs that can be separated later. Also in case of the bagbottoms 1 the glue application can be carried out analogously.

The FIGS. 5 a), b) and c) illustrate a preferential design form of theglue duct inside a design form of an application head 50 to the valves32. Also, the glue output borehole 71 and the glue duct from the valves32 to the glue output lines 71 are not illustrated here considering theclarity of FIGS. 5 a) to c).

The glue duct results from two transverse channels 52 and 53 that areillustrated with dotted lines in the FIGS. 5 a) and 5 b). These channelsrun in the application head 50 essentially transverse to the conveyingdirection x of the sheets 2 or bag bottoms 1. FIG. 5 c) illustrates thatthese two glue channels 52, 53 in the illustrated design form areboreholes for production reasons. However, the channels can have anothershape just as well.

Glue channels 55 rise from the glue channels 52, 53 in verticaldirection z to each valve. The glue arrives through these glue channels55 directly to the valve 32.

Both the glue channels 52 and 53 can be advantageously connected to thefront end of the head opposite to the glue ducts. The connection takesplace by means of another glue channel that runs in the application head50 in x direction. In this way the glue can flow e.g., via the gluechannel 52 provided for this purpose with a feed line, and flow throughthe connection channel and through the glue channel 53 in order to drainfinally through a glue discharge. In this manner a glue circulationthrough such an application head is possible.

These additional characteristics are however not illustrated in theFIGS. 5 a) to c).

The FIGS. 6 and 7 highlight once again the relation between the numberof valves 32 and the glue output orifices 71.

This relation influences decisively the possibilities of adjusting theadhesive format breadth. Adhesive format breadth implies again theexpansion of the adhesive format 4 in y direction. If only a limitednumber of valves is provided to which a large number of glue outputorifices is assigned in each case, the desired format breadth isachieved roughly, i.e., with very low resolution. However tests showthat at least one satisfactory portion of customary formats can beproduced advantageously with a quorum of five valves that can becontrolled independent of each other.

In the application head 60 illustrated in FIG. 6 several rows of valvesVRi to n are arranged one after another successively in the transferdirection x of the bag components that are to be glued. In order toillustrate the allocation of the valves to the valve rows, the referencenumbers of the valves 32 and the glue channels assigned to them 72, 73are indexed with the numbers of the respective valve row i-n.

It is advantageous to arrange the valves 32 in y direction one afteranother because the valves 32 that come into question for such a glueapplication device have a considerable overall breadth B. This overallbreadth B often exceeds the desired distance between the glue lines inthe direction transverse to the transport of the bag components.Generally it is advantageous to assign several glue output orifices toeach valve as illustrated in FIG. 7 b). However in such a design form ofthe present invention, the closure of a valve leads to the interruptionof several glue lines so that finally a lower resolution must beconsidered in case of the free structuring of the breadth of theadhesive format 4. In case of an arrangement of a very large number ofvalves 32 on one application head 61, it is possible to arrange the gluelines in the y direction close to one another and at the same time toachieve a very high resolution in the formation of the adhesive profile.It is also possible for this purpose to offset the valve rows in ydirection against each other. Also in case of an application head withseveral valve rows VRi to VRn it is possible to ensure that the glueoutput orifices lie in one line as illustrated in FIG. 7 a). This can beachieved by directing the vertical glue output channels 72, 73 in xdirection.

The afore-mentioned FIG. 7 a) illustrates the side 76 of an applicationhead 70 that is facing the bag components 1,2. The application head 70consists essentially of a valve mounting plate 75 on which the valves 32are located. As mentioned already the glue output orifices lie in oneline that runs orthogonally here to the conveying direction x of thesheet 2. Thus in the illustrated design form of the invention theboreholes 71 in x direction lie at the same level.

To position the output orifices 71 in x direction differently,differences in the run-time must be taken into account while controllingthe valves. These differences in the run-time occur because the same bagcomponent 1, 2 passes the glue outlets that are unequally arranged in xdirection at different points of time. These run-time differences arespeed-dependent and thus difficult to be taken into account. Thereforethe arrangement illustrated in FIG. 7 a) is markedly advantageous.

FIG. 7 b) illustrates how glue arrives from the valves 32 to the glueoutput orifices 71. In the view illustrated in FIG. 2 only the valves 32i in the first valve row VRi can be seen. In the design form illustratedin FIG. 7 b) however, three valve rows are provided from which the twoback rows are not illustrated. However in this design form four glueoutput orifices 71 are assigned to each valve 32 i to 32 iii. The braces77 i to iii mark three adjoining groups of glue output orifices 71whereby each group is assigned at a time to a valve out of each of thethree valve rows VRi to iii. In the y direction the openings of thevalves lie centrally thus in the center of their breadth B. These valveopenings are aligned with the upper glue outlet channel 72. In order toenable this type of arrangement the valve rows VRi to iii are eachoffset against each other by the distance C in y direction. In theillustrated arrangement the distance A between the glue output orifices71 is much smaller than the valve breadth B. Thus initially very fineglue lines 3 with small interspacing can be created that can be turnedinto a flat application easily through smearing or compressing.

In the present design form of the invention the distance C defines theresolution already discussed above between adjoining two upper glueoutlet channels 72 in y direction when the format breadth is adjusted byswitching the valves on or off selectively. Similarly the distance Calso defines the resolution when the shape of the adhesive format isadjusted, that is the desired deviation from the rectangular shape ofthe format 4 illustrated in FIG. 3 that has already been discussed withreference to FIGS. 4 and 9 a) b).

In this context FIG. 7 b) also illustrates the importance of the measureD that results from the addition of the distances A between the glueoutput orifices 71, that are fed with glue from a valve.

In the example of implementation illustrated in the FIG. 7 b), owing tothe described arrangement of different valve rows VRn behind oneanother, it is possible, that the dimension D is also clearly smallerthan the valve breadth B (here D<B/3). This factor is markedlyadvantageous because the consequently larger resolution in the case of avariation in format breadth and shape allows a more exact reduction ofthese measurements to what is actually necessary. Thus glue is saved.This is possible in case of sufficient resolution also without changingformat parts 12, 22.

FIGS. 8 a) to 8 c) illustrate in top-views of an example ofimplementation the mobility of an application head 80 in y directionrelative to the sheets 2. This design form of the invention opens upfurther variation possibilities in the areas of resolution and formatbreadth and thus further increases the flexibility when the adhesiveprofile 4 is formed freely, without making an exchange of format partsnecessary.

The mobility is clearly on the basis of the position of the center lineso and p drawn in the illustration. The center lines o and p run throughthe center of the application head 80 and the sheet 2. In FIG. 8 a) boththese lines are in alignment. In both of the other figures a relativedisplacement of the application head 80 has taken place opposite to thesheet 2. An extensive illustration of a displacement mechanism isomitted here.

As already mentioned the FIGS. 9 a) and b) illustrate a U-shaped 4 a)and a rectangular glue format 4 b) on two sheets 2. The U-shaped glueformat consists of end-to-end 3 and short glue lines 45. The glue formatin the shape of a rectangular frame 4 b) is made up of end-to-end 3 andnoncontinuous glue lines 46. The different flow pattern of the gluelines is possible by controlling the glue valves 32 selectively duringthe gluing of a bag component 1, 2 that is to be glued.

In the figures no pumps or pressure tanks are illustrated that areusually required in order to convey the glue and build up or maintainthe glue pressure required for the extrusion. All examples ofimplementation of the present invention illustrated and also describedby the claims below also apply to an indirect gluing of bag components1, 2 whereby the glue is first transferred on a roller or another formbefore it arrives on the bag components.

FIG. 10 illustrates another side-view of a nozzle applicator 114 as usede.g., in a bag machine. The nozzle 103 of the nozzle applicator isprovided with a liquid glue via the glue supply 101 that meets the glueinflow 111. The nozzle applicator receives power and control signals viathe control line 102 and the connector 112.

FIG. 11 illustrates another top-view of the same device.

FIG. 12 illustrates another section A-A through the format plate system119. The format plate system 119 consists in this example ofimplementation of the base plate 104, the sandwich plate 105 and the pinplate 106. By opening the valve 103 the pressurized glue is compressedby the inlet 116. The complete channel system 115 defined by the pinplate is illustrated in FIG. 13. A channel system can also be a systemwith several channels 115. The main purpose of such a channel system isthe distribution of the glue onto several output orifices. That is allthe more important since the gap between the output orifices is usuallysmaller than the breadth of the valves. Also the costs of the valves arehigh and justify the use of such a channel system. Therefore it is alsopossible to provide several channels with glue from one valve. Thechannels can then distribute the glue on several output orifices. In theexample of implementation illustrated, the adhesive and/or glue arrivesfrom the channels 115 into the output orifices 113. Subsequently theadhesive leaves the output orifices 113 and is applied on paper or foilmaterial 107 and forms adhesive tracks 108 there since the material 107is moved past the format plate system 119 in the direction of the arrow121. In the illustrated example of implementation the output orifices113 are sealable by pins 120. These pins are fastened rotatably in thepin plate 106 and are fixed by the safety device 118 in axial direction.The pins 120 pierce through the output orifices. 113. On the level ofthe output orifice 113 the pins contain a glue outlet orifice 117. In anappropriate adjustment this borehole allows glue to pass through so thatadhesive is applied on the material 107. In FIG. 12 the adhesiveapplication has just been completed. For this purpose the pin 120 wasturned by 90° just like a screw with the help of a groove (notillustrated in the figure) in the pinhead 110, so that the axis of theglue admission orifice 117 projects out of the drawing plane and one canlook into this opening 117.

FIG. 13 illustrates a top-view of a pin plate 104 that is removed fromthe remaining format plate system 119. The observer looks in thedirection of the glue flow on this plate. The channels 115 and theoutput orifices can be recognized clearly.

List of Reference Symbols

x Conveying direction of the sheets y Direction in space transverse tothe conveying direction of the sheets (horizontal) z Direction in spacetransverse to the conveying direction of the sheets (vertical) wConveying direction of the bag bottoms 1  1 Bag bottom  2 Sheet  3 Glueline  4 Rectangular adhesive format  4 a) U-shaped adhesive format  4 b)Adhesive format in the shape of a rectangular frame  10 Known gluer,preferentially for sheets  11 Glue cylinder  12 Plate and/or format part 13 Plate cylinder  14 Gripper cylinder  15 Arrow in the rotatingdirection of the gripper cylinder 14  16 Arrow in the rotating directionof the plate cylinder 13  17 Arrow in the rotating direction of the gluecylinder 17  18 Dotted line  19 Bag  20 Known gluer, preferentially forcross bottoms  21 Glue reservoir  22 Plate and/or format part  23 Platecylinder  24 Roller clearance  25 Axes of the cylinders  26 Dotted linethat sketches the route of transport of the bags  27 Rotating directionof the cylinders  28 Glue transfer cylinder  29 Impression cylinder  30Glue application in accordance with the invention  31 Application headand/or application plate  32 Valves  32n Valve of the nth. valve row  33Glue feed line/tube  40 Gluer in accordance with the invention  41Application head and/or application plate  42 Valves  43 Glue feedline/tube  44 Glue lines discontinued at regular distances  45 Shortglue line  46 Noncontinuous glue line  47 End-to-end glue line  48Non-glued sheet  50 Application head  52 Glue channel in y direction(horizontal) on the application head  53 Glue channel in y direction(horizontal) on the application head  55 Glue channel in z direction(vertical) on the application head  56 Mounting plate  60 Applicationhead with n valve rows  61 Valve mounting plate VRi First valve row VRiiSecond valve row VRn nth valve row  66 The side of the valve mountingplate facing away from the bag components to be glued.  70 Applicationhead  71 Glue output orifice  72 Upper glue output channel  73 Lowerglue output channel  75 Valve mounting plate  76 The side of the valvemounting plate facing the bag components to be glued  77i First group ofglue output orifices  77ii Second row of glue output orifices  77iiiThird row of glue output orifices A Distance between two glue outputorifices 71 in y direction B Breadth of the valve 32 in y direction CDistance between two adjoining upper glue output orifices in y directionD Sum of the distances between the glue output orifices 71 that areprovided with glue from a valve.  80 Example of implementation of anapplication head o Center line of the application head 80 p Center lineof the sheet 2 y Space direction transverse to the conveying directionof the bag components 101 Glue supply 102 (electric) control line 103Electromagnetic valve 104 Base plate 105 Sandwich plate 106 Pin plate107 Paper/foil 108 Adhesive/glue (starch basis or dispersion) 109 110Pinhead 111 Glue inflow 112 Connector 113 Output orifice 114 Sealing 115Channel 116 Inflow 117 Glue supply borehole 118 Pin safety device(retainer) 119 Format plate system 120 Pin 121 Arrow in the direction ofthe material (107) handling

1. Bottoming device for cross bottom paper bags (1) that forms the crossbottoms (1) of paper bags in that it implements folds at the extremitiesof tubular segments from which the bags (1) are produced that in thismanner applies glue layers to the folded bottoms (1) on the extremitiesof the tubular segments and/or the sheets (2) intended to be glued withthe bottoms (1) with the help of gluers (10, 20, 30, 40) connects andglues the folded bottoms (1) and the sheets (2): characterized by thefact that at least one gluer (10, 20, 30, 40) that is equipped with atleast one glue reservoir (21) or at least one glue duct (33, 52, 53) inwhich glue is exposed to a pressure that is higher than the ambientpressure and whereby the at least one glue reservoir (21) or the atleast one glue duct (33, 52, 53, 55, 72, 73) is provided with at leastone glue output orifice (71) through which glue is directly applied onthe sheets (2) and/or folded bottoms (1).
 2. Bottoming device inaccordance with claim 1 characterized by the fact that the glue transfercan be carried out between the at least one glue output orifice (71) orother glue carrying components of the bottoming device and the sheets(2) and/or folded bottoms (1) in a contact-free manner.
 3. Bottomingdevice in accordance with claim 1 characterized by the fact that theglue ducts (33, 52, 53, 55, 72, 73) that supply glue to the glue outputorifices (71) have at least one valve (32).
 4. Bottoming device inaccordance with claim 1 characterized by the fact that in the gluingstation (10, 20, 30, 40, 50, 60, 70) an application head (31, 41, 50,60, 80) is provided that contains at least one component of at least oneglue reservoir (21) or of at least one glue supply line (33, 52, 53, 55,72, 73) and to which at least one glue output orifice (71) is assigned.5. Bottoming device in accordance with claim 4 characterized by the factthat the application head (31, 41, 50, 60, 80) has several glue outputorifices (71).
 6. Bottoming device in accordance with claim 5characterized by the fact that the application head (31, 41, 50, 60, 80)has a plate-like form (61) whereby the glue output orifices (71) areprovided on the side (76) facing the bag component to be glued. 7.Bottoming device in accordance with claim 4 characterized by the factthat valves (32) are attached to the application head (31, 41, 50, 60,80).
 8. Bottoming device in accordance with claim 7 characterized by thefact that the valves (32) are attached on the side (66) of theapplication head (31, 41, 50, 60, 80) facing away from the bagcomponents to be glued.
 9. Bottoming device in accordance with claim 7characterized by the fact that at least one component of the glue outputorifices (71) in the direction in space (y) running transverse to thetransfer direction have a distance (A) between one another that issmaller than the breadth (B) of the valves (32).
 10. Bottoming device inaccordance with claim 7 characterized by the fact that more glue outputorifices (71) than valves (32) are provided on the application head (31,41, 50, 60, 80).
 11. Bottoming device in accordance with claim 5characterized by the fact that the glue output orifices (71) that areprovided in the application head (31, 41, 50, 60, 80) are located in oneline running essentially transverse to the transfer direction (y) of thebag components (1,2) to be glued.
 12. Bottoming device in accordancewith claim 5 characterized by the fact that the valves (32) are providedwith glue by at least one borehole or chamber (52, 53) in theapplication head (31, 41, 50, 60, 80).
 13. Bottoming device inaccordance with claim 12 characterized by the fact that at least oneborehole or chamber (52, 53) runs essentially transverse to the transferdirection (x) of the bag components (1,2).
 14. Bottoming device inaccordance with claim 7 characterized by the fact that at least one partof the valves (32) on the application head (31) is arranged in thedirection running offset to the transfer direction (x) of the bagcomponents (1, 2).
 15. Bottoming device in accordance with claim 14characterized by the fact that the valves (32) are arranged in differentrows (VR1, VRn) that run transverse (y) to the transfer direction (x) ofthe bag components (1, 2).
 16. Bottoming device in accordance with claim4 characterized by the fact that the application head (31, 41, 50, 60,80) is mobile transverse to the transfer direction (y) of the bagcomponents (1, 2) to be glued.
 17. Bottoming device in accordance withclaim 4 characterized by the fact that the application head (31, 41, 50,60, 80) can swivel from the glue application position.
 18. Bottomingdevice in accordance with claim 17 characterized by the fact that therotatable application head (31, 41, 50, 60, 80) can take up standstillpositions dedicated to various definite functions.
 19. Bottoming devicein accordance with claim 18 characterized by the fact that at least twostandstill positions of the application head (31, 41, 50, 60, 80) areintended that are dedicated to at least two of the following functions:application of glue on the bag components (1, 2) to be glued sealing theglue output orifices (71) wipe off the glue contaminating theapplication head (31) rinse the application head (31)
 20. Bottomingdevice in accordance with claim 4 characterized by the fact that thedistance between the output orifices (71) can be freely selected duringthe application of glue on the bag components (1, 2) to be glued. 21.Bottoming device in accordance with claim 1 characterized by the factthat the at least one glue duct (33, 52, 53, 55, 72, 73) or the at leastone glue reservoir (21) has a water connection.
 22. Bottoming device inaccordance with claim 21 characterized by the fact that the waterconnection has a check valve.
 23. Bottoming device in accordance withclaim 1 characterized by the fact that the at least one glue duct (33,52, 53, 55, 72, 73) or the at least one glue reservoir (21) has at leastone of the following characteristics: a pressure relief valve a pressuresensor a pressure controller
 24. Bottoming device in accordance withclaim 1 characterized by the fact that the application head (31) has aprojection on the side (76) facing the bag components (1, 2) to be gluedthis projection is closer than the output orifices (71) during the glueapplication of the bag components to be glued (1, 2).
 25. Bottomingdevice in accordance with claim 4 characterized by the fact that theapplication head (31) is provided with glue and/or water by flexiblelines.
 26. Bottoming device in accordance with claim 3 characterized bythe fact that at least one valve (32) that provides at least one glueoutput orifice (71) with glue can be controlled independent of the othervalves (32), so that the application of the glue line (3) produced fromthe at least one glue output orifice (71) can be started and stoppedselectively.
 27. Bottoming device in accordance with claim 26characterized by the fact that the opening and closing of the at leastone valve (32) can be carried out also during the glue application of abag component (1, 2) to be glued.
 28. Bottoming device in accordancewith claim 3 characterized by the fact that at least 5 valves (32) areprovided.
 29. Bottoming device in accordance with claim 9 characterizedby the fact that the sum (D) of the distances (A) between the glueoutput orifices that are fed with glue from a valve in the direction inspace running transverse (y) to the transfer direction (x) of the bagcomponents (1, 2) to be glued is smaller than the breadth (B) of thevalves (32).
 30. Bottoming device in accordance with claim 1characterized by the fact that the glue channels (52, 53) that transportthe glue to a majority of valves (32) have a common cross-sectional areathat is at least half as large as the sum of the cross-sectional areasof the glue output orifices (71) that extrude this glue.
 31. Bottomingdevice in accordance with claim 1 characterized by the fact that a hardcounter bearing—preferentially a metallic cylinder—is provided on whichthe bag components (1, 2) to be glued are located during the glueapplication.
 32. Bottoming device in accordance with claim 3characterized by the fact that in the transfer direction of the glue tothe valves more stoppers are provided with which the glue channels (72,73, 77, 115) and/or glue output orifices (71, 113) can be sealed. 33.Bottoming device in accordance with claim 32 characterized by the factthat the sealability of the glue channels (72, 73, 77, 115) and/or glueoutput orifices (71, 113) is ensured by pins (120) and/or screws. 34.Bottoming device in accordance with claim 33 characterized by the factthat the sealing of the channels (115) and/or glue outlet openings takesplace with pins (120) that are held rotatably in a format plate system(119), that (120) have a glue outlet that seals the channels (115)and/or output orifices (113) when the pins (120) are rotated. 35.Bottoming device in accordance with claim 33 pins (120) or screws areinserted in at least a part of the output orifices (113) whereby themain axes of inertia of the pins (120) or screws coincide with the axisof the output orifice (113).
 36. Process for the operation of abottoming device in accordance with claim 3 characterized by the factthat at least one valve (32) that is active during the formation of adefinite glue format (4) is opened or closed at other points of timethan the other valves (32) during the gluing of a bag component (1, 2).37. Process in accordance with claim 36 characterized by the fact thatthe period between the opening and the closing of the valve (32) amountsto less than 5 milliseconds.